[PATCH] D44573: [AArch64] Add patterns matching (fabs (fsub x y)) to (fabd x y)

Mon Mar 19 05:19:09 PDT 2018

john.brawn updated this revision to Diff 138898.
john.brawn added a comment.

I'm pretty sure we never get to trying to match the patterns when we don't have FullFP16, due to differences in fp16 type legalization, but looking at AArch64GenAsmMatcher.inc there is indeed no predicate checking so it makes sense to add predicates here.

Repository:
  rL LLVM

https://reviews.llvm.org/D44573

Files:
  lib/Target/AArch64/AArch64InstrInfo.td
  test/CodeGen/AArch64/arm64-vabs.ll
  test/CodeGen/AArch64/fp16_intrinsic_scalar_2op.ll
  test/CodeGen/AArch64/fp16_intrinsic_vector_2op.ll

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